[broadcom-sai]: Updated broadcom SAI to fix High CPU on TH/Th2 platfo…

…rm. (#4859)

Verified after loading on TH platforms cpu usage gone down:

Previous:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2521 root 20 0 1512860 360452 63540 S 144.6 4.4 8:00.03 syncd

After Fix:
7500 root 20 0 1592420 350912 64184 S 45.4 4.3 3:50.99 syncd

platform/broadcom/sai.mk

@@ -1,8 +1,8 @@
-BRCM_SAI = libsaibcm_3.7.5.1_amd64.deb
-$(BRCM_SAI)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/3.7/libsaibcm_3.7.5.1_amd64.deb?sv=2015-04-05&sr=b&sig=baLk8LLHxk9CN%2Fu0rOar5ELvojYxD00DEcFcbCnFD%2BA%3D&se=2034-02-12T01%3A20%3A05Z&sp=r"
-BRCM_SAI_DEV = libsaibcm-dev_3.7.5.1_amd64.deb
+BRCM_SAI = libsaibcm_3.7.5.1-1_amd64.deb
+$(BRCM_SAI)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/3.7/libsaibcm_3.7.5.1-1_amd64.deb?sv=2015-04-05&sr=b&sig=cxmXsJ%2BjcnR9ckFRbMigIbkzOncYkiV04weL%2FVPKBmk%3D&se=2034-03-06T00%3A30%3A30Z&sp=r"
+BRCM_SAI_DEV = libsaibcm-dev_3.7.5.1-1_amd64.deb
 $(eval $(call add_derived_package,$(BRCM_SAI),$(BRCM_SAI_DEV)))
-$(BRCM_SAI_DEV)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/3.7/libsaibcm-dev_3.7.5.1_amd64.deb?sv=2015-04-05&sr=b&sig=28n0jOPdv6r%2FhyQNXtufNdd9PEoA3WT5e1rCXs5cE58%3D&se=2034-02-12T01%3A20%3A56Z&sp=r"
+$(BRCM_SAI_DEV)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/3.7/libsaibcm-dev_3.7.5.1-1_amd64.deb?sv=2015-04-05&sr=b&sig=LVgghAv75VG4idW6xfpId%2FlrvPBja7uBQeTbjZsR3CA%3D&se=2034-03-06T00%3A31%3A30Z&sp=r"
 
 SONIC_ONLINE_DEBS += $(BRCM_SAI)
 $(BRCM_SAI_DEV)_DEPENDS += $(BRCM_SAI)